NAME

       catchmark - iostream manipulator

DESCRIPTION

       The  catchmark  is  used for building labels used for input-output of vector-valued fields
       (see field(2)):

               cin  >> catchmark("f")   >> fh;
               cout << catchmark("u")   << uh
                    << catchmark("w")   << wh
                    << catchmark("psi") << psih;

       Assuming its value for output is "u", the  corresponding  labels  will  be  "#u0",  "#u1",
       "#u2", ...

IMPLEMENTATION

       class catchmark {
           public:
               catchmark(const std::string& x);
               const std::string& mark() const { return _mark; }
               friend std::istream& operator >> (std::istream& is, const catchmark& m);
               friend std::ostream& operator << (std::ostream& os, const catchmark& m);
           protected:
               std::string _mark;
       };

SEE ALSO

       field(2)